Randomly getting the following error message

Hallo all, i'm new here and i hope you guys can help me out.
A few days ago, a weird problem started at my computer...
after a dew hours of work, there was some strange symptoms -
the internet connection wasn't working (i have router), the whole computer
worked slow as a turtle, and when trying to launch some programs,
any program (task manager, IE, etc..) i get the following message -

"Windows cannot access the specified device, path, or file.
You may not have the appropriate permissions to access the item."

this problem accures randomly during the pc work time in day (and night),
but i've noticed that after burning something with nero \ alcohol 120%
the problem always happen, but not only after burning something, but as
i said - randomly during the day.

There isn't any problem with my admin privilieges, and never had.
i tried cleaning spyware from my pc with 3 different progs, but nothing found.
i also cleaned the registry, removed some unneccessery apps from the pc,
and cleaned internet cach (using CCleaner).
Also tried the AVG removal tool - http://www.grisoft.com/doc/112/lng/us/tpl/tpl01
for virus known to give this kind of error, no luck.

What can be the problem? I'm running updated Windows XP Pro + SP2,
and i'm logged in as Admin all the time.

Please help me , thanks

 

regarding your query, i think your pc is infected with spyware post this problem in Malware section
http://forums.majorgeeks.com/forumdisplay.php?f=35
they are one of the best in this kind of problem

note dont forget this link
READ & RUN ME FIRST Before Asking for Support
and follow the instruction

 

Is one of them Spysweeper?

Steve

 

Yes, why?
(I Used ad-aware se, spybot, spysweeper)

 

is Your SPysweeper clean?
i mean did you get it as genuine?

try to uninstall is first and see what happen

 

lol, yeah its completely legal
and how can spysweeper can be the source of the problem..?

i'll try uninstall it.

 

actually i have no idea
i tried already Spysweeper trial and full but i get same problem
Especially on IE it takes 3 mins to load my browser
and i uninstall it then problem finished
Also i read from other forum same problem
read here
http://www.ingmar.dk/cgi-bin/aforum.isa?zaq=21rav1559a

let me know what happen after you uninstall it